Avista Utilities should lower base rates for its Washington electric customers instead of trying to collect more money, the state attorney general’s office said this month. The office, which described …

Avista Energy, the utility’s former energy trading subsidiary, has received $15 million through a settlement with California utilities that accused it of manipulating spot energy prices in that state during …

Wheelchair access requirements at the new City Hall plaza and Huntington Park below it were eased by Spokane building officials because of terrain impediments, prompting mixed reactions within the region’s …

After 20 years on a mainframe, Avista Utilities is launching new computer systems this year for handling customer service calls, managing work orders and tracking equipment in its three-state service …

Hot summer days contributed to higher third-quarter earnings for Avista Corp., officials said Wednesday. The Spokane-based utility cited air conditioning demand as a factor in its quarterly income of $11.4 …